Package for butter



(No Model.)

B. M. ORANDAL. Package for Butter.

No. 241,478, Patented Ma 'n, I881.

N PETERS, PhutoLithographer, Wanhingbrl, D. C.

UNITED STATES PATENT OFFICE.

EDWARD M. oRA'nnAL, on CHICAGO, ILLINOIS.

PACKAGE FOR BUTTER.

SPECIFICATION forming part of Letters Patent No. 241,478, dated May 17, 1881.

Application filed October 26, 1880.

To all whom it may concern Be it known that I, EDWARD M. CRANDAL, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvementsin Packages for Butter, of which the following is a specification.

My invention relates toimprovements in packages for the preservation and transportation of butter and other like substances.

The object ofi my invention is to provide a cheap package, which will both perfectly exclude the air from the butter and at the same time keep it cool and free from changes of temperature, and also of a strong, durable, compact form suitable for transportation; and my invention consists in a tight outer wooden tub or vessel surrounding a butter-envelope made of veneering' or like thin flexible board or other material, and consisting of a top and. bottom and a strip to form the conical or cylindrical portion of the butter-envelope, and cut so that-when placed inside the tub it will con form to the shape thereof, the exterior surface of the envelope being provided with a number of notched triangular supporting strips or cleats, the purpose of which is to createaspace between thebutter-envelope an d the tub,which maybe filled with brine, for the purpose of excludingthe air and preserving the butter. The notches in the cleats permit a free circulation of the brine around the envelope, and the parts of the envelope being loosely joined together the brine has free access to the butter.

In the accompanying drawings, which form part of this specification, Figure l is a central vertical section of my improved package. Fig. 2 is a transverse section on line 2 of Fig. 1. Fig. 3 is a central vertical section of aportion of the butter-envelope and Fig. 4 shows the conical portion of the envelope extended, as it is before being placed in the tub.

Similar letters of reference indicate like parts. i

In the drawings, A represents the outer tub or vessel, made of wood, of the ordinary construction, so as to be water-tight.

B and B are the heads, and b and I) are the hoops. The brine is poured in through the bung-hole b and b is the plug. The head B may be removed by loosening the hoops b.

G is the conical portion of the envelope. To

(No model.)

tacks or screws d, a number of trian gular cleats,"

D, provided with notches d. The bottom 0 and top 0 of the envelope are provided with like notched cleats. These cleats serve to support and strengthen the butterenvelope, as well as to keep it apart from the tub, so that there will be a space on all sides between the envelope and the tub. The cleats D are made triangular in shape, so that only the narrow edge of the cleat will touch the outer tub, thus allowing a freer circulation of the brine or preserving liquid, and so that the butter-envelope will be lighter. It is also a cheaper construction. Cleats of other shapes may be used,

however, and other means than notches in the cleats may he used for insuring a free circulation of the brine-as, for example, holes in the cleats; but I prefer the construction already described.

When the head 13 is removed the bottom C of the envelope is first placed in the bottom of.

the tub with the cleats down. The conical part (1 is next placed in position in the tub and then packed full of butter, the butter itself expanding the adjustable or expansible envelope, so' that the cleats on its outer surface press tightly against the tub. The top of the envelope is next applied, and then the head B. The tub is then inverted, the plug b removed, and the space between the tub and the envelope filled with brine, thus driving out all the air from the butter, and surrounding it with a sheet of brine or water,which excludes the air from it, and thus preserves it and keeps it cool. As the butter-envelope is thus supported on one side by the butter and on the other side by brine, there is little strain upon it, and it pressure of the butter inside the same it at all times completely fills the tub. There is consequently no tendency whatever for the envelope toshake or move about in the tub, and thus become injured, and this enables me to remove the butter from the package in a solid unbroken mass, as the envelope will expand away from the butter after beingremovcd from the butter; or, if made conical in form, as I prefer, upon the envelope being slipped out a very little from the top the cake of butter will slip out from the envelope without removing the envelope from the tub.

What 1 claim is- The combination, with the outer tub, of an expansible butterenvelope and cleats for keeping the tub and envelope apart, substantially as specified.

2. The combination of the tub and an expansible flexible butter-envelope provided with ex- 20 notched cleats D, so as to permit a free circu- 2 5 lation of the brine around the butter and butter-envelope, substantially as specified.

EDWARD M. (JRANDAL.

Witnesses:

EDMUND ADGOOK, JOHN W. MUNDAY. 

